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Acquisitions Acquisition (Details 1) - USD ($)
Mar. 02, 2019
Mar. 03, 2018
Jun. 12, 2017
Mar. 04, 2017
Dec. 14, 2016
Business Acquisition          
Goodwill $ 185,832,000 $ 180,956,000   $ 101,334,000  
EFCO Corporation          
Business Acquisition          
Net working capital     $ 1,422,000    
Property, plant and equipment     44,641,000    
Goodwill     90,429,000    
Other intangible assets     71,500,000    
Less: Long-term liabilities acquired, net     17,643,000    
Net assets acquired     $ 190,349,000    
Sotawall          
Business Acquisition          
Net working capital         $ 10,682
Property, plant and equipment         7,993
Goodwill         21,380
Other intangible assets         94,630
Net assets acquired         $ 134,685